A story from my dim & distant past in which I was (legitimately) asked to compromise a server and gain root access.
I’m rather fond of the Stethoscope gem for application instance monitoring. Here’s how to configure it correctly in AWS with a TLS-only application load balancer.
Flinging application notifications to Slack via SNS and AWS Lambda.
Now merged into Rails, but here’s my original write-up of using hstore columns with PostgreSQL.